Electro-optical and nonlinear optical properties of semiconductor nanorod doped liquid crystals

Yana Williams; Kan Chan; Jae Hong Park; Iam Choon Khoo; Brad Lewis; Thomas E. Mallouk

doi:10.1117/12.617730

Electro-optical and nonlinear optical properties of semiconductor nanorod doped liquid crystals

Yana Williams, Kan Chan, Jae Hong Park, Iam Choon Khoo, Brad Lewis, Thomas E. Mallouk

Research output: Contribution to journal › Conference article › peer-review

19 Scopus citations

Abstract

We studied the electro-optical property and photorefractive effects in a semiconductor CdSe nanorod doped neamtic liquid crystal [NLC] system. The nonlinear index coefficient is measured to be ^{n2 = 2.05 × 10-2 cm2} /Wwhich is 10 times larger than that of an equivalent pure liquid crystal system. Electro-optical switching investigation shows that the Freedericksz transition voltage of this system is also noticeably lower than that of un-doped NLC. These enhanced electro- and nonlinear optical properties are attributed to the photoconductivity of CdSe nanorods and the enlarged electric conductivity and dielectric anisotropies of the doped system. An AC field assisted photorefractive effect in CdSe nanorod doped liquid crystal system has also been studied.

Original language	English (US)
Article number	593613
Pages (from-to)	1-6
Number of pages	6
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5936
DOIs	https://doi.org/10.1117/12.617730
State	Published - 2005
Event	Liquid Crystals IX - San Diego, CA, United States Duration: Jul 31 2005 → Aug 2 2005

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.617730

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title = "Electro-optical and nonlinear optical properties of semiconductor nanorod doped liquid crystals",

abstract = "We studied the electro-optical property and photorefractive effects in a semiconductor CdSe nanorod doped neamtic liquid crystal [NLC] system. The nonlinear index coefficient is measured to be n2 = 2.05 × 10-2 cm2 /Wwhich is 10 times larger than that of an equivalent pure liquid crystal system. Electro-optical switching investigation shows that the Freedericksz transition voltage of this system is also noticeably lower than that of un-doped NLC. These enhanced electro- and nonlinear optical properties are attributed to the photoconductivity of CdSe nanorods and the enlarged electric conductivity and dielectric anisotropies of the doped system. An AC field assisted photorefractive effect in CdSe nanorod doped liquid crystal system has also been studied.",

author = "Yana Williams and Kan Chan and Park, {Jae Hong} and Khoo, {Iam Choon} and Brad Lewis and Mallouk, {Thomas E.}",

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note = "Liquid Crystals IX ; Conference date: 31-07-2005 Through 02-08-2005",

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TY - JOUR

T1 - Electro-optical and nonlinear optical properties of semiconductor nanorod doped liquid crystals

AU - Williams, Yana

AU - Chan, Kan

AU - Park, Jae Hong

AU - Khoo, Iam Choon

AU - Lewis, Brad

AU - Mallouk, Thomas E.

PY - 2005

Y1 - 2005

N2 - We studied the electro-optical property and photorefractive effects in a semiconductor CdSe nanorod doped neamtic liquid crystal [NLC] system. The nonlinear index coefficient is measured to be n2 = 2.05 × 10-2 cm2 /Wwhich is 10 times larger than that of an equivalent pure liquid crystal system. Electro-optical switching investigation shows that the Freedericksz transition voltage of this system is also noticeably lower than that of un-doped NLC. These enhanced electro- and nonlinear optical properties are attributed to the photoconductivity of CdSe nanorods and the enlarged electric conductivity and dielectric anisotropies of the doped system. An AC field assisted photorefractive effect in CdSe nanorod doped liquid crystal system has also been studied.

AB - We studied the electro-optical property and photorefractive effects in a semiconductor CdSe nanorod doped neamtic liquid crystal [NLC] system. The nonlinear index coefficient is measured to be n2 = 2.05 × 10-2 cm2 /Wwhich is 10 times larger than that of an equivalent pure liquid crystal system. Electro-optical switching investigation shows that the Freedericksz transition voltage of this system is also noticeably lower than that of un-doped NLC. These enhanced electro- and nonlinear optical properties are attributed to the photoconductivity of CdSe nanorods and the enlarged electric conductivity and dielectric anisotropies of the doped system. An AC field assisted photorefractive effect in CdSe nanorod doped liquid crystal system has also been studied.

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JF - Proceedings of SPIE - The International Society for Optical Engineering

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T2 - Liquid Crystals IX

Y2 - 31 July 2005 through 2 August 2005

ER -

Electro-optical and nonlinear optical properties of semiconductor nanorod doped liquid crystals

Abstract

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